Backflow Preventers

Test Kits & accessories
Interior Instrument Tech http://www.iitsltd.com/

Shepherd Instruments http://www.shepherdinstruments.com/

Mid-west Instruments http://www.backflowtestkits.com/

BAVCO Parts & Repair http://www.bavco.com/index.php
Manufacturers
Ames http://www.amesfirewater.com/Products/Backflow_PreventersAccessories

Apollo http://www.apollovalves.com/backflow

Febco http://www.febcoonline.ca/

Watts http://www.wattscanada.ca/backflowprevention

Wilkins http://backflowparts.com/wilkins-catalog/
Testing & Repair
AMES

CONBRACO

Cross Connections